Note 9 - Net Income Per Share (Tables)

12 Months Ended

Mar. 31, 2021

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Year Ended March 31,
	2021		2020		2019
Net income (numerator):
Net income	$	30,603	$	25,851	$	37,740
Shares (denominator)
Weighted average number of common shares outstanding used in basic computation		20,060		20,041		20,461
Common shares issuable upon the vesting of restricted stock		49		4		20
Common shares issuable upon conversion of preferred shares		10		10		10
Shares used in diluted computation		20,119		20,055		20,491
Net income per common share:
Basic	$	1.53	$	1.29	$	1.84
Diluted	$	1.52	$	1.29	$	1.84